Cast Steel Butterfly Valve

Size rating:NPS 4"~32" 
Working Pressure:Class 300LB~600LB
Power:Worm gear 
Design STD:JB, GB/T, DIN  
Face to Face dimension:API 6D
Flange end STD:ANSI6,5 
TEST STD:API 598 

Material List

Seal:stainless steel, fluorine plastic 
Body:cast steel 
Disc:cast steel 
stem:stainless steel